When should you connect your Hp 17-bs0xx to external power? Keep this in mind:

Connect the computer to external power under any of the following conditions:
● When charging or calibrating a battery
● When installing or updating system software
● When updating the system BIOS
● When writing information to a disc (select products only)
● When running Disk Defragmenter on computers with internal hard drives
● When performing a backup or recovery.

hp 17-bs0xx battery

Also the original hp 17-bs0xx 10.95V 2850mAh laptop battery is available on https://www.storebattery.co.nz/hp-17-bs0xx-10.95v-2850mah-laptop-battery-store-for-new-zealand-p-209950.html. Also you can search this battery according to battery part number like JC03, 919700-850, HSTNN-LB7V. 

Voltage: 10.95V

Capacity: 2850mAh (31.2Wh)
Battery cells: 3-cell
Chemical: Li-ion
Battery Color: black
Condition: new original battery
Warranty: 9 months